Ok, story time:
John, now in his thirties, goes back to his hometown to visit a special tree, the tree that brought him and Sherlock together as the dearest of childhood friends. Sherlock had always loved to play pretend with John and assumed the persona of a genius detective capable of solving any mystery. John eventually realizes, however, that this is not just a game. Sherlock begins to act strangely by the end of that summer, crying or throwing temper tantrums for no reason. When John asks him what is wrong, Sherlock makes up a story about an arch-nemesis, Moriarty, who is out to kill him. John soon realizes that Moriarty isn’t a person and that this is one mystery no one can solve.
Note: Each image is a gif and should be animated. I noticed that some of them freeze on slower computers so if one of them is frozen, click here for the still-frame version of this post.
Man! I finally got this story out of my system! Lol. Sorry if some of the gifs are sloppy. I got really lazy towards the end. (Also, in case, it wasn’t obvious, “Moriarty” is Sherlock’s metaphor for some terminal hereditary disease that he knows will kill him.)
Also, I had originally intended for this to be a mock-trailer, set to the song, ”Somewhere only we know" by
EDIT: Just as a general note to everyone, no this is NOT a kid!lock version of Alone on the Water. I didn’t even have that fic in mind when I thought of this story. Just because AotW features a Sherlock with a terminal disease doesn’t mean all terminal disease stories are forever derived from AotW (and this assumption, frankly speaking, is quite offensive). The focus of this story when I thought of it was the possibility of a kid!Sherlock making up an arch-nemesis that was truly monstrous but in a way that no one would expect.